100-140 Question 177
Select 2A user reports that their external USB webcam is not working during video calls on their laptop. You confirm that the webcam is properly connected to the USB port. Which of the following troubleshooting steps should you take to resolve the issue? (Choose two.)
- A
Check if the webcam is selected as the default video input device in the video conferencing application.
- B
Update the laptop's BIOS firmware to the latest version available from the manufacturer.
- C
Verify that the webcam drivers are installed and up to date in Device Manager.
- D
Inspect the network connection to ensure enough bandwidth is available for the video call.
- E
Disable the laptop's built-in webcam in Device Manager to avoid conflicts with the external webcam.
Show answer and explanation
Correct answers: A, C
Explanation
To resolve webcam issues, it is important to confirm that the correct device is selected in the video conferencing application and that the drivers for the webcam are properly installed and updated in the system settings. These steps address the most common causes of such problems, ensuring the external webcam is recognized and can function correctly.
- A. Correct.
Selecting the correct webcam as the default video input device in the video conferencing application is a crucial step to ensure the application uses the right hardware.
- B. Incorrect.
Updating the laptop's BIOS is not directly related to resolving webcam-specific issues unless explicitly stated in the release notes, so it is not a necessary step in this scenario.
- C. Correct.
Ensuring that the webcam drivers are installed and updated in Device Manager helps confirm that the operating system can recognize and properly use the webcam.
- D. Incorrect.
While network bandwidth is important for the quality of a video call, it is unrelated to the issue of a webcam being unrecognized or not working.
- E. Incorrect.
Disabling the built-in webcam may help in rare cases of hardware conflicts, but it is not a standard troubleshooting step unless conflicts are confirmed.